What is new and surprising in Christ is that in him we see not only a fraction of the past, but the ultimate origin from which everything comes; that he foreshadows not only a slice of the future, but the ultimate goal of the universe. In the life of the Son, time encounters its own truth by making visible the depths of eternity.

Now the glory of the one who eternally comes from the Father and eternally returns to him in love enters into the flesh, into the space where past and future, coming from and walking toward, memory and promise, are joined in the density of the present. We see then how Christ can fulfill the human experience of time beyond what is imaginable while faithfully preserving its structure. These reflections allow us to see in the Transfiguration a key to understanding the rhythm of salvation history. That the glory of Easter is anticipated on Mount Tabor is no exception, but rather a witness to Christ’s dominion over time, including the past and future. The second epistle of Peter tells us, indeed, that the Transfiguration validates the Old Testament in retrospect. From this point of view it is possible to see how the prophets and the just of the Old Testament were justified by the Spirit of Christ. We can glimpse also the meaning of Tertullian’s sentence, quoted in Gaudium et spes 22, in which he sees in the image of man a prefiguration of Christ’s image: “Thus that clay, already putting on the image of Christ who was to be in the flesh, was not only a work of God but also a token of him.” (full text)